Twisting-frame.



T. A. & H. A. BOYD.

TWISTING FRAME.

APPLICATION FILED FEB.18,1911. 1,1 17,940:

Patented Nov. 17, 1914 WITNESSES. INVENTORS )8 we Mil/L5G; MM @d y;

NORRIS PETERS n1. Pnum'unm WASHING rnN T SATS ATENT OFFTOE.

THOMAS A. BOYD AND HAROLD A. BOYD, OF GLASGOW, SCOTLAND.

TWISTING-FRAME.

Application filed February 18, 1911.

To all whom, it may concern Be it known that we, THOMAS ALEXANDER BOYDand HAROLD ARTHUR BOYD, engineers, both of Shettleston Iron \Vorks,Glasgow, Scotland, subjects of King George of Great Britain and Ireland,declare that we have made an invention which is as follows:

Our improvements refer to twlsting frames in which several single yarnsor threads are passed through delivery rollers and are twisted on to abobbin or spindle and has for its object the more convenient andaccurate guiding of such single threads so as to form a well laid cord.

Our invention also includes the means of smoothing the said singlethreads and of causing rough and irregular parts of the said threads topass into the center of the twisted cord and so improve the externalappearance of the said cord.

Our invention consists of a guide placed in the path of the singlethreads as they pass from the delivery roller to the twisting spindle.This guide is so made as to keep the several single threads which are tobe twisted together separate until the point at which the whole of thetwist they are to receive is put into them. The guide referred to ismade with radial grooves, one for each thread, and all equally spacedaround a hole in the center of the said guide through which hole thetwisted threads are drawn. The said grooves are so arranged that thesingle threads are smoothed on the side of the said threads which iscarried to the outside of the twisted cord. By means of these groovesprojecting fibers and irregularities on the single threads are turnedinto the interior of the twisted cord.

Accompanying this specification there is one sheet of drawings.

Figure 1 shows side elevation of spindle flier, top steadier and guide.Fig. 2 shows sectional View of guide and die. Fig. 3 shows plan view ofguide and Fig. 4C a side view of delivery roller, threads, guide andwire core.

In carrying out our invention in one arrangement Figs. 1, 2 and 3 weemploy six bobbins 1, each filled with the single yarns 2, to be twistedtogether. We carry the single yarns 2, from these bobbins 1, through apair of delivery rollers 3, and 4 which are driven in the ordinarymanner at the relative speed to the twisting spindle 5, described belowwhich is required to give the necessary Specification of Letters Patent.

Patented Nov. 17, 1914:.

Serial No. 609,529.

twist. Below the said delivery rollers 3, and 4, we mount in the usualmanner a twisting' spindle 5, with a flier 6, mounted on same and drivenby means of a slot on the spindle top and a key in the flier. At the topof the flier 6 is a boss 7 which passes through a bush 8 and is securedin same by means of a collar 9 screwed on the boss 7 at the top of thebush 8. The bush 8 is socketed in a top steadier 10 which is hinged on arod 11 in front of and at the top of the spindle 5. In this way when theflier 6 is lifted off the spindle 5, it can be swung upward and towardthe front of the spindle 5. its boss remaining all the while in the bushin the top steadier 10. This enables the worker to place the twistingbobbin 12, on the spindle 5, or to remove it when filled. \Ve bore ahole 13 into the boss 7 of the flier 6, from the top side to meet atransverse hole 14 through the boss below the bush 8 in which the flier6 works. By means of this hole 14. the threads 2 pass from the deliveryrollers 3 and 1 to the twisting bobbin 12. On the top of the fliersteadier 10 we fix a guide holder 15 with a hole immediately over theflier boss 7. In this guide holder 15, we socket a guide 16 with ahardened steel die 18 central to the spindle. The guide 16 referred tois made in the form of a horizontal disk with a boss 17 which entersinto the guide holder 15 and is therefore easily removable for thepurpose of threading. On the periphery of the guide 16 we fix at equaldistance six curl eyes 19, to receive the six threads 2 which come fromthe delivery rollers 3 and 4. On the top of the guide we fix a smoothingguide 20 with a trumpet shaped mouth looking upward. In the trumpetshaped mouth 21 we form at equal distance apart six grooves 22 runningfrom a hole 23 in the center radially outward. The six threads 2 arepassed from the curl guides 19 described, each one through one of thegrooves and downward through the die 18 and the flier 6 to the bobbin12. As the flier 6 revolves the threads are twisted and are drawn by thetwisting bobbin 12 through the steel die 18. As the threads 2 passthrough the radial grooves 22 described. the under side of the thread issmoothed and fibers and imperfections on the threads are turned to thetop side and eventually are carried into the interior of the twistedthread or cord. It will thus be understood that the worker carries thethreads 2 through the delivery rollers 3 and 4, then through the curlguides 19 on the guide holder 16 each thread separate from the others.The worker then lifts the guide and threads the guide and the dieplacing the six threads each in one of the smoothing grooves 22 referredto. The worker then carries the threads through the flier boss 7 and theflier leg to the twisting bobbin 12. The guide 16 is then placed in theguide holder 15, and the operation of twisting proceeded with. When abobbin 12 is filled the worker raises the flier 6 05 the spindle 5 andswings it along with the flier steadier 10 and the guide clear of thespindle 5 and the bobbin 12 leaving the threads intact. She then removesthe full bobbin, cuts the twisted thread leaving suflicientlength at theflier legs to attach to the new bobbin which is put upon the spindle.The flier with the guide and threads in same is then swung back toworking position and twisting proceeds.

In a second arrangement Fig. 4; we employ all the parts referred to inthe foregoing first arrangement and in addition we employ a wire 24which we suspend and fix upon the trumpet shaped smoothing guide 2-0.lVe insert this wire into the interior of the six threads 2 which arebeing twisted together allowing it to pass say one inch into the guide20 to form a core upon which the threads are twisted and off the pointof which the twisted thread is drawn downward to the twisting bobbin.The object of this core is to form a rounder and more evenly twistedthread or cord.

Having now particularly described and ascertained the nature of ourinvention and in what manner the same is to be performed we declare thatwhat we claim is 1. In a twisting frame, a delivery roller, a twistingspindle, a pivoted top steadier for the latter and a thread. guidecarried by said steadier, said guide having means for receivingseparately the threads from the delivery roller and bring them togetherat the point of efiective twist from the spindle, substantially asdescribed.

2. In a twisting frame, a delivery roller, a twisting spindle, a fliertherefor, a thread guide and a pivoted top steadier for the spindle,said steadier carrying the thread guide and flier, substantially asdescribed.

3. In a twisting frame, a delivery roller, a twisting spindle, a fliertherefor, a thread guide and a pivoted top steadier for the spindle,said steadier carrying the thread guide and flier, and said thread guidehaving means for receiving separately the threads from the deliveryroller and bringing them together at the point of effective twist fromthe spindle, substantially as described.

4. In a twisting frame, a delivery roller,

a twisting spindle and an interposed guide,

ing loops and being centrally bored to afford a delivery passage throughwhich the threads are passed together and delivered to the twistingspindle, together with a core element arranged centrally of saiddelivery passage during operation.

6. In a twisting frame, a delivery roller, a twisting spindle and athread guide directly interposed between the same with its delivery boresubstantially alined with said spindle, said guide being arrangedslightly in advance of the spindle and having means at its periphery forreceiving separately the threads together with independent radialpassageways through which said threads are led separately to thedelivery bore, for the purpose described.

7. In textile machinery of the class described, a thread guidecomprising a centrally bored gnide plate carrying peripheral,outwardly-faced, open guide eyes 19 extending beyond the edge of theplate to facilitate threading, and a smoothing guide with radial groovesin which the threads are led from the guide eyes to the central bore,substantially as described.

8. In textile machinery of the class described, a thread guidecomprising a guide plate, with independent, centrally-bored guide piece,a smoothing guide with conical guide aperture alined with the bore ofsaid guide piece, and guide eyes peripherally arranged around saidsmoothing guide, the latter having smoothing grooves leading radially tosaid guide eyes and through which the threads pass from the guide eyesto the central guide piece, substantially as described.

9. In textile machinery of the class described, a thread guidecomprising a conically bored smoothing guide having radial smoothinggrooves extending across the upper surface thereof, and guide eyesspaced peripherally around said smoothing guide and from which thethreads are led through said grooves to the bore of said smoothingguide, substantially as described.

10. In textile machinery of the class described, a thread guidecomprising an apertured support, a guide plate with downwardly extendingboss whereby said plate may be removablyv positioned in said-support, asmoothing guide with central collecting bore, and guide eyes mounted onsaid plate and spaced peripherally around said smoothing guide fromWhich the threads are led across said guide to its central bore and doWnthrough the plate and boss, substantially as described.

11. In textile machinery of the class described, a thread guidecomprising a guide plate recessed on its upper face and provided With acentral, downwardly-extending boss, a smoothing guide socketed in saidrecess on the upper face of the guide plate, and guide eyes mounted onsaid plate and spaced peripherally around said smoothing 15 guide forthe purpose described.

In testimony whereof We have signed our names to this specification, inthe presence of two subscribing Witnesses.

T. A. BOYD. H. A. BOYD. Witnesses:

JAMES CUNNINGHAM, EDWARD BOYD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Iatents. Washington, D. G.

